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High-Power Er3+/Yb3+ Codoped Double-Cladding Fibre Amplifier with More Than 2W Output Power |
| LIU Yan-Ge1;FENG Xin-Huan1;LI Li-Jun1;LI Yao1;YUAN Shu-Zhong1;KAI Gui-Yun1;LI Yi-Gang2;DONG Xiao-Yi1 |
| 1Institute of Modern Optics, Nankai University, Tianjin 300071
2Institute of physics, Nankai University, Tianjin 300071 |
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| Cite this article: |
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LIU Yan-Ge, FENG Xin-Huan, LI Li-Jun et al 2005 Chin. Phys. Lett. 22 343-345 |
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Abstract A high-power Er3+/Yb3+-codoped double-cladding all-fibre amplifier was successfully demonstrated and experimentally investigated. The amplifier could be operated with a maximum output power of 2.18W and 2.11W at 1541nm and 1550nm wavelengths, respectively, when the maximum pump power was 6.07W. The power conversion efficiency was up to 35.6% and 34.4% at the two wavelengths, respectively. The output power and the gain were greater than 2.00W and 20.0dB, respectively, in the wavelength range from 1539nm to 1565nm for 20.0mW input signal power. The gain fluctuation and the noise figure around 1550nm wavelength were less than 0.3dB and 6.0dB, respectively.
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| Keywords:
42.60.Da
42.55.Wd
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Published: 01 February 2005
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| PACS: |
42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.55.Wd
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(Fiber lasers)
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